CVE-2021-32625— Redis vulnerability in STRALGO LCS on 32-bit systems
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-32625
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Redis vulnerability in STRALGO LCS on 32-bit systems
Source: NVD (National Vulnerability Database)
Vulnerability Description
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer, could be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. This is a result of an incomplete fix by CVE-2021-29477. The problem is fixed in version 6.2.4 and 6.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the STRALGO LCS command. On 64 bit systems which have the fixes of CVE-2021-29477 (6.2.3 or 6.0.13), it is sufficient to make sure that the proto-max-bulk-len config parameter is smaller than 2GB (default is 512MB).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出导致缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Arch Linux输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arch Linux是Arch开源的一个应用系统。一个轻量级且灵活的Linux®发行版，试图使它保持简单。 Arch Linux存在输入验证错误漏洞，攻击者可利用该漏洞可以将专门设计的数据传递给应用程序，触发整数溢出，并在目标系统上执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-32625
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-32625
请登录查看更多情报信息。
- https://github.com/redis/redis/releases/tag/6.0.14x_refsource_MISC
- https://github.com/redis/redis/security/advisories/GHSA-46cp-x4x9-6pfqx_refsource_CONFIRM
- https://github.com/redis/redis/releases/tag/6.2.4x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SN7INTZFE34MIQJO7WDDTIY5LIBGN6GI/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHWOF7CBVUGDK3AN6H3BN3VNTH2TDUZZ/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-32625
IV. Related Vulnerabilities
Same product: redis
- CVE-2026-25243
redis-server RESTORE invalid memory access may allow remote - CVE-2026-23631
redis-server Lua use-after-free may allow remote code execut - CVE-2026-23479
redis-server use-after-free in unblock client flow may allow - CVE-2025-62507
Redis: Bug in XACKDEL may lead to stack overflow and potenti - CVE-2025-49844
Redis Lua Use-After-Free may lead to remote code execution
Same vendor: redis
- CVE-2026-25243
redis-server RESTORE invalid memory access may allow remote - CVE-2026-23631
redis-server Lua use-after-free may allow remote code execut - CVE-2026-23479
redis-server use-after-free in unblock client flow may allow - CVE-2025-62507
Redis: Bug in XACKDEL may lead to stack overflow and potenti - CVE-2025-49844
Redis Lua Use-After-Free may lead to remote code execution
V. Comments for CVE-2021-32625
No comments yet